Visible Light‐Driven Photoredox Synthesis of Sulfonylated Benzimidazoisoquinolines via 10 <i>H</i> ‐Phenothiazine‐Catalyzed Electron Donor–Acceptor Complexes
An unmodified 10 H ‐phenothiazine is directly utilized as an efficient photocatalyst to enable ready access to sulfonylated benzo[4,5]imidazo[2,1‐ a ]isoquinoline derivatives from N ‐allyl benzimidazoles and sulfonyl chlorides. The reaction involves the formation of electron donor–acceptor complexes between phenothiazine and sulfonyl chloride, which, upon visible light irradiation, undergo single‐electron transfer to generate sulfonyl radicals. The reaction features mild conditions, broad substrate scope, and high efficiency.
Authors
- Ningning Li (ORCID: https://orcid.org/0009-0000-5742-6828)
- Cheng‐Liang Liu (ORCID: https://orcid.org/0000-0002-8778-5386)
- Zhixing Liu (ORCID: https://orcid.org/0000-0002-5690-8283)
- Yi Lv (ORCID: https://orcid.org/0000-0003-3636-6664)
- Jiang‐Sheng Li (ORCID: https://orcid.org/0000-0001-8359-4120)
- He Li (ORCID: https://orcid.org/0000-0002-4076-7279)
- Chenxi Zhang (ORCID: https://orcid.org/0000-0003-3383-9112)
- Zhiwei Li (ORCID: https://orcid.org/0000-0002-1489-4506)
- Hanwen Liu (ORCID: https://orcid.org/0000-0001-9800-8446)
- Zi‐Rui Kuang
Institutions
- Changsha University of Science and Technology (CN)
Publication Details
- Journal
- Advanced Synthesis & Catalysis
- Published
- 2025-06-12
- DOI
- https://doi.org/10.1002/adsc.9581
- Citations
- 2
- Primary Topic
- Sulfur-Based Synthesis Techniques
- Type
- article
- Field-Weighted Citation Impact
- 1.87
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Hunan Province
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology